Long-term durability of super lightweight concrete under marine environment

Abstract

       This paper reports the long-term durability of super lightweight aggregate (SLA) concrete in marine environment. In addition, the effect of segregation on the performance of SLA concrete was investigated. After 8-year exposure in marine environment, various tests and investigations were conducted. It was revealed that SLA concrete has enough compressive strength and Young’s modulus after the long-term exposure. The diffusion coefficient of chloride ion of SLA concrete was small because of its low water to cement ratio. Though the segregation slightly affects the performance of SLA concrete, it was verified that SLA concrete has high durability in marine environment. [This abstract is not included in the PDF]